- fix test suite with a chmod

- updated to 1.21
see /usr/share/doc/packages/perl-File-Which/Changes
1.21 2016-03-02 14:20:43 -0500
- Workaround for nutty cygwin filesystem rules

1.20 2016-03-01 15:06:54 -0500
- Fix bug where executable named "0" would not be found (gh#7)

- updated to 1.19
see /usr/share/doc/packages/perl-File-Which/Changes
1.19 2015-07-21 09:23:54 -0400
- Relax required Perl back to 5.6.x as this module is upriver to
a large number of modules
- No non-core requirements back to 5.6.2

- updated to 1.18
see /usr/share/doc/packages/perl-File-Which/Changes
1.18 2015-05-04 15:35:40 -0400
- Remove prototypes (gh#6)

- updated to 1.17
see /usr/share/doc/packages/perl-File-Which/Changes

- updated to 1.16
see /usr/share/doc/packages/perl-File-Which/Changes
1.16 Sun 29 Mar 2015
- Remove use Test::Script from tests that escaped when this requirement
became optional.